Desk-signal



(No Model.)

J. C. PARKER.

A DESK SIGNAL. No. 391,185. Patented Oct. 16,1888.

ATTORNEY,

UNITED STATES PATENT OFFICE.

JAMES C. PARKER, OF VOODSTON, KANSAS.

DESK-SIGNAL.

SPECIFICATION forming part of Letters Patent No. 391,185, dated October 16, 1888.

Application tiled April 12, 1888.

To all whoml it may concern:

Be it known that I, JAMES C. PARKER, of iVoodston, in the county of Books and State of Kansas, have invented a new and Improved Desk-Signal,of which the following is a speciication, reference being had to the annexed drawings, forming a part thereof, in which- Figure 1 is a perspective view of my improved signal, and Fig. 2 is aperspective view of a modified form of the saine.

Similar letters of reference indicate corresponding parts in both views.

The object of my invention is to provide a simple and effective signal to be used by scholars in schools for attracting the attention of the teacher.

The invention consists in the peculiar construction and arrangement of parts, as hereinafter fully described, and pointed out in the claim.

The support A, in which the signal-arm Bis pivoted, is formed of a plate doubled or returned parallel with itself, and provided with ilanges C for attachment to the desk-top. A part of the curved portion of the plate is cut away to admit the arm B betweenthe folds of the plate A and to form a shoulder, a, for stopping the arm B after it has passed a vertical position. The arm B turns on a pivotal pin,

b, passing through the plate A and through the portion of the arm received between the folds of the plate.

Serial No. 270,425. (No model.)

The signal shown in Fig. 2 is designed to be placed against the front or endof the desk. The supporting-plate A in this case is of L-shaped section, aportion of the flanges o1" which is cut away to forni a shoulder7 a, for stopping the arm B, the arm B being connected with the plate A by a rivet, b. To the top of the desk is secured a soft pad, D, of rubber or other suitable material,for the arm B to strike upon when lowered,the object being to avoid noise.

When a signal is to be given, the scholar lifts the arm B from the position shown in dotted lines into the position shown in full lines; and it is allowed to remain in this position until a reply is secured, when it is lowered into a horizontal position, as indicated by dotted lines.

Havingthus described my invention,I claim y 

